How Sleep Apnea Affects The Eyes

Sleep apnea is a common sleep disorder in which breathing repeatedly stops and starts during sleep, sometimes dozens of times per night. While most people associate sleep apnea with snoring and daytime fatigue, many are surprised to learn that this condition can also have a significant impact on eye health. If you live in Paradise or the greater Las Vegas area and have been diagnosed with sleep apnea, understanding the connection between your sleep disorder and your eyes is an important step in protecting your vision.

What Is Obstructive Sleep Apnea?

The most common form of sleep apnea is obstructive sleep apnea (OSA). During OSA, the muscles in the back of the throat relax excessively during sleep, partially or completely blocking the airway. This results in pauses in breathing (apnea) or abnormally shallow breathing (hypopnea). OSA is more common in men and is associated with risk factors such as obesity, high blood pressure, diabetes, and heart disease.

How Do You Know If You Have Sleep Apnea?

Sleep apnea often goes undiagnosed because the most obvious symptoms occur during sleep. Common signs include loud snoring, gasping or choking during sleep, excessive daytime sleepiness, morning headaches, difficulty concentrating, irritability, and a dry or sore throat upon waking. Keep in mind that not everyone who snores has sleep apnea. A sleep study ordered by your physician is the standard method for diagnosis.

Which Eye Conditions Are Linked to Sleep Apnea?

Glaucoma

Glaucoma is an eye condition in which increased pressure or reduced blood flow damages the optic nerve, leading to gradual vision loss. People with sleep apnea face a higher risk of developing glaucoma, possibly because the repeated drops in blood oxygen during apnea episodes can affect the optic nerve. It is also worth noting that CPAP machines, which are one of the most common treatments for OSA, have been associated with elevated eye pressure in some patients. Regular glaucoma screenings are essential for anyone with sleep apnea, whether or not they use a CPAP device.

Floppy Eyelid Syndrome

Floppy eyelid syndrome (FES) is a condition in which the upper eyelids become unusually loose and can fold open during sleep. This exposes the surface of the eye, leading to redness, irritation, discharge, and blurred vision. Studies have found a strong association between FES and OSA, with a large majority of FES patients also having sleep apnea.

Non-Arteritic Anterior Ischemic Optic Neuropathy

Non-arteritic anterior ischemic optic neuropathy (NAION) occurs when blood flow to the front portion of the optic nerve is disrupted. Patients typically notice sudden, painless vision loss in one eye. Research has consistently found a high prevalence of OSA among patients diagnosed with NAION, making sleep apnea screening relevant for anyone who experiences this type of vision loss.

Retinal Vein Occlusion

Retinal vein occlusion (RVO), sometimes called an eye stroke, happens when a vein carrying blood away from the retina becomes blocked. This can cause sudden vision changes, blurriness, or blind spots. Research has identified a notable association between RVO and sleep apnea, which may be related to the cardiovascular effects of repeated oxygen deprivation during sleep.

Other Eye Problems Connected to Sleep Apnea

Additional eye conditions that have been observed more frequently in patients with sleep apnea include papilledema (swelling of the optic disc), keratoconus, and central serous chorioretinopathy. CPAP machine use has also been linked to dry eye syndrome and bacterial conjunctivitis in some patients due to air leak around the mask. If you use a CPAP machine and notice new eye symptoms, let your eye doctor know so adjustments or treatments can be recommended.

Practical Steps to Protect Your Eyes

• Share your full medical history, including a sleep apnea diagnosis, with your eye doctor so they can screen for associated conditions.
• Schedule comprehensive eye exams regularly, especially if you use a CPAP machine.
• Report any sudden vision changes, new eye redness, or persistent irritation promptly, as these could indicate a condition requiring urgent care.
• If you suspect you have sleep apnea but have not been diagnosed, talk to your physician about a sleep study.

At Insight Vision Optometry, Las Vegas, our teathe areawith patients in the area and throughout the our community valley to monitor and manage eye conditions connected to sleep apnea and other systemic health issues. Call 702-747-4070 or visit www.insightvisionlv.com to schedule your comprehensive eye exam.